<template>
  <div class="app-container">
    <!-- 查询和其他操作 -->
    <div class="filter-container">
      <el-input
        v-model="listQuery.username"
        clearable
        size="mini"
        class="filter-item"
        style="width: 200px"
        placeholder="请输入管理员名称"
      />
      <el-button
        v-permission="['GET /merchant/admin/list']"
        size="mini"
        class="filter-item"
        type="primary"
        icon="el-icon-search"
        @click="handleFilter"
        >查找</el-button
      >
      <el-button
        v-permission="['POST /merchant/admin/create']"
        size="mini"
        class="filter-item"
        type="primary"
        icon="el-icon-edit"
        @click="handleCreate"
        >添加</el-button
      >
      <el-button
        :loading="downloadLoading"
        size="mini"
        class="filter-item"
        type="warning"
        icon="el-icon-download"
        @click="handleDownload"
        >导出</el-button
      >
    </div>

    <!-- 查询结果 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      size="small"
      element-loading-text="正在查询中。。。"
      border
      fit
      highlight-current-row
    >
      <el-table-column align="center" label="管理员ID" prop="id" sortable />

      <el-table-column align="center" label="管理员名称" prop="username" />

      <el-table-column align="center" label="管理员头像" prop="avatar">
        <template slot-scope="scope">
          <img v-if="scope.row.avatar" :src="scope.row.avatar" width="40" />
        </template>
      </el-table-column>

      <el-table-column align="center" label="管理员角色" prop="roleIds">
        <template slot-scope="scope">
          <el-tag
            v-for="roleId in scope.row.roleIds"
            :key="roleId"
            type="primary"
            style="margin-right: 20px"
          >
            {{ formatRole(roleId) }}
          </el-tag>
        </template>
      </el-table-column>

      <el-table-column align="center" label="邮箱" prop="mail" />

      <el-table-column align="center" label="联系手机" prop="tel" />

      <el-table-column
        align="center"
        label="操作"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            v-permission="['POST /merchant/admin/update']"
            type="primary"
            size="mini"
            @click="handleUpdate(scope.row)"
            >编辑</el-button
          >
          <el-button
            v-permission="['POST /merchant/admin/delete']"
            type="danger"
            size="mini"
            @click="handleDelete(scope.row)"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="listQuery.page"
      :limit.sync="listQuery.limit"
      @pagination="getList"
    />

    <!-- 添加或修改对话框 -->
    <el-dialog
      :title="textMap[dialogStatus]"
      :visible.sync="dialogFormVisible"
      :close-on-click-modal="false"
    >
      <el-form
        ref="dataForm"
        :rules="rules"
        :model="dataForm"
        status-icon
        label-position="left"
        label-width="100px"
        style="width: 400px; margin-left: 50px"
      >
        <el-form-item label="管理员名称" prop="username">
          <el-input v-model="dataForm.username" />
        </el-form-item>
        <el-form-item label="管理员密码" prop="password">
          <el-input
            v-model="dataForm.password"
            type="password"
            auto-complete="off"
          />
        </el-form-item>
        <el-form-item label="管理员头像" prop="avatar">
          <el-upload
            action=""
            :show-file-list="false"
            :before-upload="
              (file) => handleBeforeUpload(file, 'adminAvatar', 400, 400)
            "
            class="avatar-uploader"
            accept=".jpg,.jpeg,.png,.gif"
          >
            <img v-if="dataForm.avatar" :src="dataForm.avatar" class="avatar" />
            <i v-else class="el-icon-plus avatar-uploader-icon" />
          </el-upload>
        </el-form-item>
        <el-form-item label="管理员角色" prop="roleIds">
          <el-select v-model="dataForm.roleIds" multiple placeholder="请选择">
            <el-option
              v-for="item in roleOptions"
              :key="item.value"
              :label="item.label"
              :value="item.value"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="邮箱地址" prop="mail">
          <el-input v-model="dataForm.mail" />
        </el-form-item>
        <el-form-item label="手机号码" prop="tel">
          <el-input v-model="dataForm.tel" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取消</el-button>
        <el-button
          v-if="dialogStatus == 'create'"
          type="primary"
          @click="createData"
          >确定</el-button
        >
        <el-button v-else type="primary" @click="updateData">确定</el-button>
      </div>
    </el-dialog>
    <image-cropper
      v-model="showCrop"
      :imgSrc="imgSrc"
      :cropWidth="cropWidth"
      :aspectRatio="aspectRatio"
      :cropHeight="cropHeight"
      @uploadSuccess="uploadSuccess"
    ></image-cropper>
  </div>
</template>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #20a0ff;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 120px;
  height: 120px;
  line-height: 120px;
  text-align: center;
}
.avatar {
  width: 145px;
  height: 145px;
  display: block;
}
</style>

<script>
import {
  listAdmin,
  createAdmin,
  updateAdmin,
  deleteAdmin,
} from "@/api/business/admin";
import { roleOptions } from "@/api/business/role";
import { uploadPath } from "@/api/business/storage";
import { getToken } from "@/utils/auth";
import Pagination from "@/components/Pagination"; // Secondary package based on el-pagination
import ImageCropper from "@/components/ImageCropper";

export default {
  name: "Admin",
  components: { Pagination, ImageCropper },
  data() {
    return {
      showCrop: false, // 展示裁切框
      cropWidth: 0, // 裁切框宽带
      cropHeight: 0, // 裁切框高度
      aspectRatio: 1,
      cropId: "",
      imgSrc: "",
      uploadPath,
      list: null,
      total: 0,
      roleOptions: null,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20,
        username: undefined,
        sort: "add_time",
        order: "desc",
      },
      dataForm: {
        id: undefined,
        username: undefined,
        password: undefined,
        avatar: undefined,
        roleIds: [],
      },
      dialogFormVisible: false,
      dialogStatus: "",
      textMap: {
        update: "编辑",
        create: "创建",
      },
      rules: {
        username: [
          { required: true, message: "管理员名称不能为空", trigger: "blur" },
        ],
        password: [
          { required: true, message: "密码不能为空", trigger: "blur" },
        ],
        avatar: [{ required: true, message: '图像不能为空', trigger: 'blur' }],
        roleIds: [{ required: true, message: '角色不能为空', trigger: 'blur' }],
        mail: [{ required: true, message: '邮箱不能为空', trigger: 'blur' }],
        tel: [{ required: true, message: '电话不能为空', trigger: 'blur' }]
      },
      downloadLoading: false,
    };
  },
  computed: {
    headers() {
      return {
        "X-Dts-Merchant-Token": getToken(),
      };
    },
  },
  created() {
    this.getList();

    roleOptions().then((response) => {
      this.roleOptions = response.data.data;
    });
  },
  methods: {
    handleBeforeUpload(file, cropId, cropWidth, cropHeight) {
      this.imgSrc = URL.createObjectURL(file); // 创建图片地址用于显示和裁切
      this.showCrop = true; // 打开裁切对话框
      this.cropWidth = cropWidth;
      this.cropHeight = cropHeight;
      this.aspectRatio = cropWidth / cropHeight;
      this.cropId = cropId; // 标记裁切的是商品图片
      return false; // 不自动上传，由用户手动触发上传
    },
    uploadSuccess(url) {
      if (this.cropId === "adminAvatar") {
        this.dataForm.avatar = url;
      }
    },
    formatRole(roleId) {
      for (let i = 0; i < this.roleOptions.length; i++) {
        if (roleId === this.roleOptions[i].value) {
          return this.roleOptions[i].label;
        }
      }
      return "";
    },
    getList() {
      this.listLoading = true;
      listAdmin(this.listQuery)
        .then((response) => {
          this.list = response.data.data.items;
          this.total = response.data.data.total;
          this.listLoading = false;
        })
        .catch(() => {
          this.list = [];
          this.total = 0;
          this.listLoading = false;
        });
    },
    handleFilter() {
      this.listQuery.page = 1;
      this.getList();
    },
    resetForm() {
      this.dataForm = {
        id: undefined,
        username: undefined,
        password: undefined,
        avatar: undefined,
        roleIds: [],
      };
    },
    handleCreate() {
      this.resetForm();
      this.dialogStatus = "create";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs["dataForm"].clearValidate();
      });
    },
    createData() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          createAdmin(this.dataForm)
            .then((response) => {
              this.list.unshift(response.data.data);
              this.dialogFormVisible = false;
              this.$notify.success({
                title: "成功",
                message: "添加管理员成功",
              });
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    handleUpdate(row) {
      this.dataForm = Object.assign({}, row);
      this.dialogStatus = "update";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs["dataForm"].clearValidate();
      });
    },
    updateData() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          updateAdmin(this.dataForm)
            .then(() => {
              for (const v of this.list) {
                if (v.id === this.dataForm.id) {
                  const index = this.list.indexOf(v);
                  this.list.splice(index, 1, this.dataForm);
                  break;
                }
              }
              this.dialogFormVisible = false;
              this.$notify.success({
                title: "成功",
                message: "更新管理员成功",
              });
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    handleDelete(row) {
      deleteAdmin(row)
        .then((response) => {
          this.$notify.success({
            title: "成功",
            message: "删除管理员成功",
          });
          const index = this.list.indexOf(row);
          this.list.splice(index, 1);
        })
        .catch((response) => {
          this.$notify.error({
            title: "失败",
            message: response.data.errmsg,
          });
        });
    },
    handleDownload() {
      this.downloadLoading = true;
      import("@/vendor/Export2Excel").then((excel) => {
        const tHeader = ["管理员ID", "管理员名称", "管理员头像"];
        const filterVal = ["id", "username", "avatar"];
        excel.export_json_to_excel2(
          tHeader,
          this.list,
          filterVal,
          "管理员信息"
        );
        this.downloadLoading = false;
      });
    },
  },
};
</script>
